Is Kant justified in positing the existence of the noumenal world?
"Unless, therefore, we are to move constantly in a circle, the word appearance must be recognized as already indicating a relation to something, the immediate representation of which is, indeed, sensible, but which, even apart from the constitution of our sensibility (upon which the form of our intuition is grounded), must be something in itself, that is, an object independent of sensibility. There thus
results the concept of a noumenon. It is not of anything, but signifies only the thought of something in general, in which I abstract from everything that belongs to the form of sensible intuition." Kant
That is a great quote. I like this thread. Kant is dear to me